Buffer overflow in Linux kernel - CVE-2011-2182
Published: June 13, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43993
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2011-2182
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The ldm_frag_add function in fs/partitions/ldm.c in the Linux kernel before 2.6.39.1 does not properly handle memory allocation for non-initial fragments, which might allow local users to conduct buffer overflow attacks, and gain privileges or obtain sensitive information, via a crafted LDM partition table. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-1017.
How to mitigate CVE-2011-2182
Install update from vendor's website.
Sources
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.1
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=cae13fe4cc3f24820ffb990c09110626837e85d4
- http://marc.info/?l=bugtraq&m=139447903326211&w=2
- http://www.openwall.com/lists/oss-security/2011/06/05/1
- http://www.securityfocus.com/bid/52334
- https://github.com/torvalds/linux/commit/cae13fe4cc3f24820ffb990c09110626837e85d4